services/self-service/src/main/java/com/epam/datalab/backendapi/healthcheck/MongoHealthCheck.java
<filename>services/self-service/src/main/java/com/epam/datalab/backendapi/healthcheck/MongoHealthCheck.java/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.epam.datalab.backendapi.healthcheck;

import com.codahale.metrics.health.HealthCheck;
import com.epam.datalab.mongo.MongoService;
import com.google.inject.Inject;
import lombok.extern.slf4j.Slf4j;

@Slf4j
public class MongoHealthCheck extends HealthCheck {
    private final MongoService mongoService;

    @Inject
    public MongoHealthCheck(MongoService mongoService) {
        this.mongoService = mongoService;
    }

    @Override
    protected Result check() {
        try {
            mongoService.ping();
        } catch (Exception e) {
            log.error("Mongo is unavailable {}", e.getMessage(), e);
            return Result.unhealthy(e.getMessage());
        }
        return Result.healthy();
    }
}
